HEIWA HATSUJYO Washers / lock washers（Type, Spring Washers：Disc Spring Washers）

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Flat Spring Washer, JIS B, 1251, Type 1, for Screw, for Heavy Load

HEIWA HATSUJYO

This part has spring counter-force comparable to tightening axial force of bolts and prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material due to the low pressure applied to the bearing surface.

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Starting from^∗ ：	0.93 €
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Flat Spring Washer, JIS B, Type 2, for Cap, for Heavy Load

HEIWA HATSUJYO

Screw has a spring counter-force when compared to the tightening axial force of bolts. The spring prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material as a result of the low pressure applied to the bearing surface.

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Starting from^∗ ：	0.13 €
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JIS Disc Spring Washer Type 2

HEIWA HATSUJYO

[Type (application)] Spring Washer
[Type] Spring Washer
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc)
[Type] Spring Washer, Conical Spring Washer, Load
[Type]No. 1 (for light load), JIS standard Type 2
[Materials] Steel, Stainless steel
[Surface treatment] None, trivalent chromate, nickel plating, temper color
[Nominal Thread (M)] 4 5 6 8 10 12 14 16 18 20 22 24 27 30
[Thickness t (mm)] 0.45 0.55 0.6 0.9 1.1 1.2 1.4 1.6 1.8 2 2.2 2.5 2.8 3
[Materials]Steel S50C to S65C
[Materials] Stainless steel SUS304
[Surface treatment](Detail) Untreated, Temper color

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Flat Spring Washer for Screw

HEIWA HATSUJYO

[Materials] Steel, Stainless steel
[Surface treatment] None, trivalent chromate, nickel plating, temper color
[Inner diameter d (mm)] 4.3 5.3 6.4 8.4 10.5 13 15 17 19 21 23 25 28 31
[Nominal Thread (M)] 4 5 6 8 10 12 14 16 18 20 22 24 27 30
[Thickness t (mm)] 0.45 0.55 0.6 0.9 1.1 1.2 1.4 1.6 1.8 2 2.2 2.5 2.8 3
[Materials]Steel S50C to S65C
[Materials]Stainless steel SUS304
[Surface treatment](Detail) Untreated, Temper color
[Outer diameter D (mm)] 7.5 9 10.5 13.5 16.5 19

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JIS Disc Spring Washer Type 1

JIS Disc Spring Washer Type 1【1-10,000 Pieces Per Package】

HEIWA HATSUJYO

[Type (Application)] Spring Washer
[Type] Spring Washer
[Surface Treatment] (Detail) Tempering Color
[Type]Spring Washer, Conical Spring Washer, Load
[Type]No. 1 (for Light Loads), JIS Standard Type 1
[Materials] Stainless Steel
[Surface Treatment] Trivalent Chromate, Chromate, Nickel Plating, Tempering Color
[Nominal Thread (M)] 3 4 5 6 8 10 12 14 16 18 20 22 24 27 30
[Sales Unit] Individual (Available for Purchase as 1pc) Box and Packaging.
[Materials]Steel S50C to S65C
[Materials]Stainless Steel SUS304-CSP
[Outer Diameter D (mm)] 7 9 10 12.5 17 21

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Starting from^∗ ：	0.41 €
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Min. Shipping Days ：	Same day

*Unit price with basic configuration


Brand
Product Series
Starting from^∗
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Specifications
Type (Application)
Type
Material
Surface Treatment
I.D. d(mm)
Screw Nominal (M)
I.D. d(inch)
Screw Nominal (inch)
Thickness T(mm)
Sales Unit
Material: Steel
Thickness t(inch)
Material: Stainless Steel
Surface Treatment (Detailed)
Type, Spring Washers
Type, Toothed Washer
Outer Diameter D(inch)

	Promotional pricing	Promotional pricing	Promotional pricing	Promotional pricing	Promotional pricing
Brand	HEIWA HATSUJYO	HEIWA HATSUJYO	HEIWA HATSUJYO	HEIWA HATSUJYO	HEIWA HATSUJYO
Product Series	Flat Spring Washer, JIS B, 1251, Type 1, for Screw, for Heavy Load	Flat Spring Washer, JIS B, Type 2, for Cap, for Heavy Load	JIS Disc Spring Washer Type 2	Flat Spring Washer for Screw	JIS Disc Spring Washer Type 1【1-10,000 Pieces Per Package】
Starting from^∗	0.93 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	0.13 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	0.13 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	0.08 € Special price *Unit price with basic configuration Promotional pricing Volume Discount	0.41 € Special price *Unit price with basic configuration Promotional pricing Volume Discount
Min. Shipping Days ：	Same day	Same day	Same day	Same day	Same day
Specifications			Stock
Type (Application)	Spring Washers	Spring Washers	Spring Washers	Spring Washers	Spring Washers
Type	Spring Washers	Spring Washers	Spring Washers	Spring Washers	Spring Washers
Material	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel
Surface Treatment	Not Provided / Trivalent Chromate / Chromate Plating / Nickel Plating	Not Provided / Trivalent Chromate / Nickel Plating	Not Provided / Trivalent Chromate / Nickel Plating / Temper Color	Not Provided / Trivalent Chromate / Nickel Plating / Temper Color	Trivalent Chromate / Nickel Plating / Temper Color
I.D. d(mm)	6.4 ～ 23	4.3 ～ 28	4.3 ～ 31	3.15 ～ 37.5	3.2 ～ 31
Screw Nominal (M)	6 ～ 22	4 ～ 27	4 ～ 30	3 ～ 36	3 ～ 30
I.D. d(inch)	-	-	-	-	-
Screw Nominal (inch)	-	-	-	1 ～ 1/2	-
Thickness T(mm)	1.2 ～ 5	0.8 ～ 5	0.45 ～ 3	0.4 ～ 5	0.5 ～ 5
Sales Unit	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.
Material: Steel	EN 1.1206 Equiv.	EN 1.1206 Equiv.	EN 1.1206 Equiv.	EN 1.1206 Equiv.	EN 1.1206 Equiv.
Thickness t(inch)	-	-	-	-	-
Material: Stainless Steel	-	EN 1.4301 Equiv.	EN 1.4301 Equiv.	-	EN 1.4301 Equiv.
Surface Treatment (Detailed)	Not Provided / Trivalent Chromate / Chromate Plating / Nickel Plating	Not Provided / Trivalent Chromate / Nickel Plating	Tempered Collar / Not Provided	Tempered Collar / Not Provided / Trivalent Chromate / Nickel Plating	Tempered Collar
Type, Spring Washers	Disc Spring Washers	Disc Spring Washers	Disc Spring Washers	Disc Spring Washers	Disc Spring Washers
Type, Toothed Washer	-	-	-	-	-
Outer Diameter D(inch)	-	-	-	-	-

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Type (Application)
- Plain Washers
- Spring Washers
- Special Shape
- Locking
- For Fluid
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Type
- Plain Washers
- Spring Washers
- Toothed Washers (Toothed Lock Washers)
- Rosette Washers
- Single/Double Tab Washers
- Nord-lock Washers
- Set Washers
- Tapered Washers
- Spherical Washers
- Ornamental Screws, Ornamental Washers
- Hooked Washers for Jig
- Split Washers for Jig
- Square Washers
- Flat Washers with Cover
- Seal Washers
- Pawl Washers
- For Corrugated Sheet
- Fall Prevention and loosening Prevention Spring
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Material
- Steel
- Stainless Steel
- Resin
- Titanium Class 2
- Aluminum
- Brass
- Copper
- Ceramics
- Phosphor Bronze
- Titanium Class 1
- Nickel Base Alloy
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Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plated
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parker
- Clear Anodize
- Dacrotized
- Polishing
- Painting, Coating
- Silver/Copper/Tin Plating
- Temper Color
- Passivated
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I.D. d(mm)
0

0.114

0.125

0.141

0.156

0.167

0.172

0.193

0.203

0.252

0.281

0.314

0.344

0.377

0.391

1

1.05

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.75

1.8

2

2.1

2.2

2.25

2.3

2.35

2.4

2.5

2.6

2.7

2.8

2.9

3

3.1

3.15

3.2

3.3

3.4

3.5

3.55

3.6

3.7

3.8

3.9

4

4.1

4.2

4.25

4.3

4.4

4.5

4.7

4.8

5

5.1

5.2

5.25

5.3

5.36

5.4

5.45

5.5

5.8

6

6.1

6.2

6.3

6.4

6.5

6.6

6.8

7

7.1

7.2

7.4

7.5

7.8

8

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

9

9.1

9.4

9.5

9.6

9.8

10

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

11

11.2

11.3

11.4

11.5

11.6

11.8

12

12.1

12.2

12.5

12.6

12.7

13

13.2

13.3

13.5

13.8

14

14.2

14.3

14.4

14.5

14.6

15

15.2

15.5

15.8

15.9

16

16.1

16.2

16.5

16.7

16.9

17

17.5

17.7

17.8

18

18.2

18.3

18.4

18.5

18.7

18.8

18.9

19

19.5

19.6

19.7

19.8

20

20.1

20.2

20.5

20.7

20.9

21

21.4

21.5

21.75

22

22.1

22.5

22.9

23

23.2

23.4

23.5

23.75

24

24.5

24.75

25

25.2

25.3

25.4

25.5

26

26.1

26.4

26.6

26.75

27

27.5

27.75

28

28.2

28.4

28.5

29

29.3

29.75

29.8

30

30.1

30.4

30.5

31

31.2

31.4

31.5

31.9

32

32.5

33

33.5

33.7

33.9

34

34.3

34.4

34.5

35

35.75

35.8

36

36.5

37

37.4

37.5

37.75

38

38.5

39

39.5

39.8

40

40.4

40.5

40.6

41

41.7

42

42.5

43

43.2

44

45

45.8

46

46.2

47

47.2

47.3

47.5

48

49

49.6

50

51

51.4

51.5

51.8

52

53

53.6

54

54.3

55

56

57

57.3

58

59.1

60

61.3

61.9

62

63

63.1

64

64.2

65

66

67.1

68

69

69.5

70

71.1

72

74

75

75.1

78

79.1

79.3

79.7

80

82

83.1

85

86

87.5

88

88.9

90

92

93

95

95.8

99

100

102

105

108.3

110

112.4

115

120

125

130

135

140

150

155

160

170

404

406

408

410

412

414

416

417

418

419

422

427

430

433

436
Drawing

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Screw Nominal (M)
0.5

1

1.2

1.4

1.6

1.7

2

M2

2.3

2.5

2.6

3

M3

3.5

4

M4

4.5

5

M5

5.1

6

M6

7

8

M8

9

10

M10

11

12

M12

13

13.5

14

M14

15

16

M16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

32

33

34

36

37

38

39

41

42

43

44

45

46

47

48

50

51

52

54

55

56

60

64

66

68

70

72

76

80

85

90

95

105

110

115

120

125

130
Clear

I.D. d(inch)
0.109

0.115

0.135

0.148

0.200

0.227

0.260

0.355

0.400

0.416

0.450

0.512

0.525

0.573

0.827

0.894

0.952

1.025

1.077

1.202

1.327

1.640
Drawing

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Screw Nominal (inch)
1

1 1/2

1 1/4

1 1/8

1/2

1 3/8

1/4

2

No. 2

No. 3

3/4

3/8

No. 4

5/8

5/16

No. 6

7/8

7/16

No. 8

9/16

No. 10

No. 12
Clear

Thickness T(mm)
0.031

0.05

0.059

0.1

0.15

0.2

0.25

0.29

0.3

0.4

0.45

0.5

0.55

0.6

0.7

0.8

0.9

1

1.1

1.2

1.25

1.3

1.4

1.5

1.6

1.75

1.8

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.85

3

3.2

3.3

3.4

3.5

3.55

3.6

3.7

3.8

4

4.1

4.2

4.3

4.5

4.6

4.7

4.8

5

5.1

5.2

5.3

5.4

5.5

5.6

5.8

5.9

6

6.2

6.3

6.4

6.5

6.6

6.8

7

7.1

7.2

7.5

7.6

7.9

8

8.2

8.3

8.5

8.7

9

9.1

9.3

9.5

9.8

10

10.2

10.4

10.5

11

11.2

11.8

12

12.5

13

13.1

14

15

15.8

16

17

18

19

20

20.3

21

22

23

24

24.5

25

26

27

28

29

30
Drawing

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Sales Unit
- Low Quantity (Available beginning with 1 pc.)
- Box, Pkg.
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Material: Steel
EN 1.0038 Equiv.

EN 1.0320 Equiv. (hot coiled)

EN 1.0330 Equiv.

EN 1.0601 Equiv.

EN 1.0715 Equiv.

EN 1.1158 Equiv.

EN 1.1191 Equiv.

EN 1.1203 Equiv.

EN 1.1206 Equiv.

JIS-SWRH

SCM Steel

Spring Steel
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Thickness t(inch)
0.031

0.042

0.044

0.047

0.055

0.056

0.062

0.073

0.088

0.100

0.109

0.115

0.125

0.135

0.219

2

3
Drawing

Clear

Material: Stainless Steel
EN 1.4301 Equiv.

EN 1.4305 Equiv.

EN 1.4325 Equiv.

EN 1.4401 Equiv.

EN 1.4404 Equiv.

EN 1.4462 Equiv.

EN 1.4842 Equiv.

254SMO
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Surface Treatment (Detailed)
- Not Provided
- Black Oxide
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Parker
- Black Anodized Aluminum
- Dacrotized
- Buffed Surface
- Barrel, Passivated
- Special Chemical Grinding
- GeoMet Coating
- Stainless Steel Coating
- Baked Paint
- Seizure-Against Coating
- Copper Plating
- Tin Plating
- Lafre
- Black Painted
- White Paint
- Black Baked Paint
- Tempered Collar
- Other Special Treatment
- Passivated
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Type, Spring Washers
- Standard
- Disc Spring Washers
- Wave Washers
- Serrated Conical Disc Spring Washers
- Bent Washers
Details

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Type, Toothed Washer
- Internal Teeth Type
- External Teeth Type
- Flat Teeth Type
- Internal External Teeth Type
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Outer Diameter D(inch)
0.250

0.270

0.332

0.334

0.377

0.487

0.645

0.760

0.776

0.869

0.885

0.895

1.260

1.459

1.770

2.020

2.520

2.770

3.270
Drawing

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Categories related to Washers / lock washers

- Washers / lock washers

HEIWA HATSUJYO Washers / lock washers（Type, Spring Washers：Disc Spring Washers）

Flat Spring Washer, JIS B, 1251, Type 1, for Screw, for Heavy Load

Flat Spring Washer, JIS B, Type 2, for Cap, for Heavy Load

JIS Disc Spring Washer Type 2

Flat Spring Washer for Screw

JIS Disc Spring Washer Type 1【1-10,000 Pieces Per Package】

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Type (Application)

Type

Material

Surface Treatment

I.D. d(mm)

Screw Nominal (M)

I.D. d(inch)

Screw Nominal (inch)

Thickness T(mm)

Sales Unit

Material: Steel

Thickness t(inch)

Material: Stainless Steel

Surface Treatment (Detailed)

Type, Spring Washers

Type, Toothed Washer

Outer Diameter D(inch)

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